kill @e[tag=mt_gen]
kill @e[tag=mt_last]
kill @e[tag=mt_center]
kill @e[tag=surf_fill_pos]

tellraw @a ["[雪山生成器]: \n", {"text": "[开始]","color": "gold", "clickEvent": {"action": "run_command","value": "/function mountain:gen/entry"}}]